Home / 81,541.39-112,554.75-51,377.26

Finding the Fourth Proportional to 81,541.39, 112,554.75 and 51,377.26

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Solution

The fourth proportional to 81,541.39, 112,554.75 and 51,377.26 is: 70,918.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,541.39 : 112,554.75 = 51,377.26 : x
  2. Step 2: Convert to fraction form
    81,541.39/112,554.75 = 51,377.26/x
  3. Step 3: Cross multiply
    81,541.39x = 112,554.75 × 51,377.26
  4. Step 4: Simplify right side
    81,541.39x = 5,782,754,654.99
  5. Step 5: Solve for x
    x = 5,782,754,654.99/81,541.39
  6. Step 6: Final answer
    x = 70,918.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.